MIL-PRF-1-10 Electron Tube, Receiving Type 5751

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7

MIL-PRF-1/10J

TABLE I. Test conditions - Continued.

6. This test shall be conducted on the initial lot and thereafter on a lot approximately every 12

months. In the event of lot failure, the lot shall be rejected and the succeeding lots shall be

subjected to this test until a lot passes. When one lot has passed, the 12-month rule shall apply.

7. A grid resistor of 0.1 megohm shall be added to each section; however, this resistor shall not be

used when a thyratron-type short indicator is employed.

8. Acceptance sampling procedure shall be in accordance with "Base-strain test, miniature,

sampling (MIL-STD-1311, method 1121)", except that data covered in "Acceptance and

rejection criteria" shall be modified as follows:

(a) Accepted if not more than one defective for class "A", "B", or "C" defects, respectively (see

MIL-STD-1311, method 1121), or if not more than a total of two defectives are found in the

sample.

(b) Rejected if two or more defectives for class "A", "B", or "C" defects, respectively, or if a total

of three or more defectives are found in the sample.

9. Envelope temperature (TE) requirements, when measured in accordance with the temperature

by conduction-band measurement (MIL-STD-1311, method 1226), will be satisfied if a tube

having bogey Ib (+5 percent) under normal test conditions, is determined to operate at or above

minimum specified temperature at any position in the life-test rack.

10. The life-test sample shall consist of 20 tubes per lot, and no failures shall be permitted. In the

event of rejection due to failure of one or more tubes, a second sample of 20 tubes shall be

selected from the lot. Acceptance shall then be based upon zero failures in the second sample.

11. This specification sheet uses accept on zero defect sampling plan in accordance with MIL-PRF-

1, table III.

NOTE: Referenced documents. In addition to MIL-PRF-1, this document references the following:

MIL-STD-1311. Government documents are available via the ASSIST database at

Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the

extent of the changes.